Low-smoke halogen-free polyolefin insulated locomotive vehicle cable

The utility model discloses a low-smoke halogen-free polyolefin insulation locomotive vehicle cable. The cable comprises a conductor, an inner insulating layer and an outer insulating layer, wherein afilling layer is coated outside the conductor; the filling layer provides a certain protection force for the conductor; the flame-retardant layer is wrapped outside the filling layer, so that the flame-retardant layer is not in direct contact with the conductors; the flame-retardant layer can be better wrapped and fixed with the filling layer; the TPEE thermoplastic polyester elastomer compositematerial is prepared by extruding a special TPEE thermoplastic polyester elastomer, as an insulating layer, the cable has the advantages of high mechanical strength, good elasticity, impact resistance, creep resistance, cold resistance, bending fatigue resistance, oil resistance, chemical resistance, solvent erosion resistance and the like. The conductors are formed by twisting one or more strandsof fine round copper wires